Finding the Third Proportional to 436,617 and 676,237.50

Step by Step Solution

1. Step 1: Write the proportion equation
   436,617 : 676,237.50 = 676,237.50 : x
2. Step 2: Convert to fraction form
   436,617/676,237.50 = 676,237.50/x
3. Step 3: Cross multiply
   436,617x = 676,237.50 × 676,237.50
4. Step 4: Simplify right side
   436,617x = 457,297,156,406.25
5. Step 5: Solve for x
   x = 457,297,156,406.25/436,617
6. Step 6: Final answer
   x = 1,047,364.52